Fish tapes are 1/8-Inch wide high strength spring steel which are stiff for long runs and great for heavy duty wire pulls Laser etched markings in 1-foot (0.3 m) increments allow you to more accurately measure the depth of conduit runs and determine the amount of tape left to pay out Polypropylene case and handle offer the maximum in impact resistance Raised finger grips transfer 100-percent of the winding power from your hand and fingers Full grip style handle gives you a firm, steady grip as you pull tape from the case Unique sloped handle optimizes hand position for quick hand-over-hand rewinds Patents: D574,277; 8,212,178; 8,168,921; 8,164,025. Other patents pending